Coal mine gas over-limit ventilation device for coal mining

Abstract

The utility model discloses a coal mine gas over-limit ventilation device for coal mining, which belongs to the technical field of coal mining and comprises a box body, a ventilation pipe is mounted at the top of the box body, a filter plate is arranged in the ventilation pipe, an activated carbon plate is arranged on one side of the filter plate, and a fan is mounted on one side of the activated carbon plate through a support. Through cooperative use of the fixing plate, the threaded rod, the threaded sleeve, the supporting plate, an anti-skid pad, a limiting rod and a rotating disc, the contact area and the friction force between the device and the ground can be increased, and then the stability of the device in the using process is improved; the device is not prone to displacement under the action of external force, and normal use of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a coal mine gas over-limit ventilation device used in coal mining. Background Art

[0002] Coal mines are generally divided into underground coal mines and open-pit coal mines. In the process of mining underground coal mines, ventilation devices are needed to prevent the gas concentration in the coal mine from exceeding the limit and to ensure the safety of underground construction workers. After searching, a coal mine operation ventilation device is disclosed in the patent document with publication number CN219865541U. The utility model can conveniently push the device to different positions for use through the setting of universal wheels, thereby improving the convenience of using the device. However, when the above-mentioned ventilation device is in use, although the universal wheels are set to facilitate the movement of the device, the device supported by the universal wheels is not stable when in use and is easily displaced by external forces, thereby affecting the normal use of the device. For this reason, it is necessary to propose a coal mine gas over-limit ventilation device for coal mine exploitation. Utility Model Content

[0003] The utility model aims to provide a coal mine gas over-limit ventilation device for coal mine exploitation to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine gas over-limit ventilation device for coal mine mining, comprising a box body, a ventilation pipe is installed on the top of the box body, a filter plate is arranged inside the ventilation pipe, an activated carbon plate is arranged on one side of the filter plate, a fan is installed on one side of the activated carbon plate through a bracket, universal wheels are installed at the four corners of the bottom of the box body, support assemblies are arranged on both sides of the box body, the support assembly comprises a fixed plate arranged at the bottom of the side surface of the box body, a threaded rod is installed at the bottom of the fixed plate through a bearing, a threaded sleeve is arranged on the surface threaded sleeve of the threaded rod, a support plate is arranged at the bottom of the threaded sleeve, and an anti-slip pad is arranged at the bottom of the support plate.

[0005] Preferably, limit rods are provided on both sides of the top of the support plate, the bottom of the limit rods passes through the fixed plate and slidingly cooperates with the fixed plate, and a turntable for driving the threaded rod to rotate is installed on the top of the fixed plate.

[0006] Preferably, two slots for the filter plate and the activated carbon plate to pass through are opened on the top of the ventilation pipe, and sealing gaskets are arranged between the filter plate and the activated carbon plate and the two slots.

[0007] Preferably, a mounting plate is provided on the top of each of the filter plate and the activated carbon plate, the size of the mounting plate is larger than the size of the slot, and handles are provided on the top of each of the two mounting plates.

[0008] Preferably, the ventilation pipe is configured as a structure that is small in the middle and large at both ends.

[0009] Preferably, a door is mounted on one side of the box body via a hinge.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is provided with a support assembly, which can increase the contact area and friction between the ground and the ground through the coordinated use of a fixing plate, a threaded rod, a threaded sleeve, a support plate, an anti-slip pad, a limit rod and a turntable, thereby improving the stability of the device during use, making it difficult for the device to be displaced by external force, thereby ensuring the normal use of the device.

[0012] 2. In the utility model, the sealing gasket is provided to improve the sealing between the filter plate, the activated carbon plate and the ventilation pipe. The filter plate and the activated carbon plate can be easily disassembled and replaced by the slot, the mounting plate and the handle, thereby ensuring the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the ventilation pipe of the utility model;

[0015] Figure 3 This is a schematic diagram of the support assembly structure of the utility model.

[0016] In the figure: 1. Box body; 2. Ventilation duct; 3. Filter plate; 4. Activated carbon plate; 5. Fan; 6. Universal wheel; 7. Support assembly; 71. Fixing plate; 72. Threaded rod; 73. Threaded sleeve; 74. Support plate; 75. Anti-slip pad; 76. Limit rod; 77. Turntable; 8. Slot; 9. Mounting plate; 10. Handle; 11. Box door. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1:

[0019] See also Figure 1 and Figure 3Coal mines are generally divided into underground coal mines and open-pit coal mines. In the process of mining underground coal mines, in order to prevent the gas concentration in the coal mine from exceeding the limit and to ensure the safety of underground construction workers, a ventilation device is needed. The utility model provides a technical solution: a coal mine gas over-limit ventilation device for coal mine mining, including a box body 1, universal wheels 6 are installed at the four corners of the bottom of the box body 1, support components 7 are arranged on both sides of the box body 1, and the support component 7 includes a fixing plate 71 arranged at the bottom of the side of the box body 1, a threaded rod 72 is installed at the bottom of the fixing plate 71 through a bearing, a threaded sleeve 73 is arranged on the surface threaded sleeve of the threaded rod 72, a support plate 74 is arranged at the bottom of the threaded sleeve 73, and an anti-gas The top of the support plate 74 is provided with a limit rod 76, the bottom of the limit rod 76 passes through the fixed plate 71 and slides with the fixed plate 71. The top of the fixed plate 71 is provided with a turntable 77 for driving the threaded rod 72 to rotate. After the device is pushed to a suitable position by the universal wheel 6, the turntable 77 on the fixed plate 71 is rotated. Under the limiting action of the limit rod 76, the threaded rod 72 drives the support plate 74 to move downward through the threaded sleeve 73, and then drives the anti-skid pad 75 downward to make close contact with the ground, which can increase the contact area and friction between the ground, thereby improving the stability of the device when in use, making it difficult for the device to be displaced by external force, thereby ensuring the normal use of the device.

[0020] In this embodiment, please refer to Figure 1 and Figure 2 A ventilation pipe 2 is installed on the top of the box body 1. The ventilation pipe 2 is set to a structure with a small middle and large ends. A filter plate 3 is arranged inside the ventilation pipe 2. An activated carbon plate 4 is arranged on one side of the filter plate 3. A fan 5 is installed on one side of the activated carbon plate 4 through a bracket. When in use, the air in the coal mine is sucked into the ventilation pipe 2 by starting the fan 5, and the particulate impurities in the air are filtered through the filter plate 3. The toxic and harmful gases such as gas are adsorbed and purified by the activated carbon plate, and the filtered and purified air is discharged to the outside, thereby preventing the gas concentration in the coal mine from exceeding the limit, thereby ensuring the safety of underground construction workers.

[0021] In this embodiment, please refer to Figure 1 and Figure 2Two slots 8 are provided at the top of the ventilation pipe 2 for the filter plate 3 and the activated carbon plate 4 to pass through. Sealing gaskets are arranged between the filter plate 3 and the activated carbon plate 4 and the two slots 8. Mounting plates 9 are provided on the tops of the filter plate 3 and the activated carbon plate 4. The size of the mounting plate 9 is larger than the size of the slot 8. Handles 10 are provided on the tops of the two mounting plates 9. The sealing gaskets can improve the sealing between the filter plate 3, the activated carbon plate 4 and the ventilation pipe 2. The slots 8, the mounting plates 9 and the handles 10 are used in conjunction with each other, so that the filter plate 3 and the activated carbon plate 4 can be easily disassembled and replaced, thereby ensuring the use effect of the device.

[0022] Embodiment 2:

[0023] See also Figure 1 This embodiment is different from the first embodiment in that a door 11 is hingedly mounted on one side of the box body 1, and the door 11 is provided to facilitate the box body 1 to store items, such as new filter plates 3 and activated carbon plates 4.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine gas over-limit ventilation device for coal mining, comprising a box (1), characterized in that: A ventilation pipe (2) is installed on the top of the box (1), a filter plate (3) is arranged inside the ventilation pipe (2), an activated carbon plate (4) is arranged on one side of the filter plate (3), a fan (5) is installed on one side of the activated carbon plate (4) through a bracket, universal wheels (6) are installed at the four corners of the bottom of the box (1), and support components (7) are arranged on both sides of the box (1), the support components (7) include a fixing plate (71) arranged at the bottom of the side of the box (1), a threaded rod (72) is installed at the bottom of the fixing plate (71) through a bearing, a threaded sleeve (73) is arranged on the surface of the threaded rod (72), a support plate (74) is arranged at the bottom of the threaded sleeve (73), and a non-slip pad (75) is arranged at the bottom of the support plate (74).

2. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: Limiting rods (76) are provided on both sides of the top of the support plate (74); the bottom of the limiting rods (76) penetrates the fixing plate (71) and is slidably matched with the fixing plate (71); and a rotating disk (77) for driving the threaded rod (72) to rotate is installed on the top of the fixing plate (71).

3. The coal mine gas over-limit ventilation device for coal mining according to claim 1 is characterized in that: Two slots (8) for the filter plate (3) and the activated carbon plate (4) to pass through are provided at the top of the ventilation pipe (2), and sealing gaskets are provided between the filter plate (3) and the activated carbon plate (4) and the two slots (8).

4. The coal mine gas over-limit ventilation device for coal mining according to claim 3 is characterized in that: The tops of the filter plate (3) and the activated carbon plate (4) are both provided with mounting plates (9), the size of the mounting plates (9) being larger than the size of the slot (8), and handles (10) are both provided on the tops of the two mounting plates (9).

5. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: The ventilation pipe (2) is configured to have a structure that is small in the middle and large at both ends.

6. The coal mine gas over-limit ventilation device for coal mining according to claim 1, characterized in that: A door (11) is installed on one side of the box body (1) via a hinge.

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